Is joule thief circuit gets overunity?

[ltseung888]

蒋先生:真有你的!很历害!向你祝贺!王沈河

Tramslation:


Mr. Tseung: You do have something.  It is wonderful.  Congratulations! Wang Shen He

@TK
The AA Battery Charger can get two rechargeable AA batteries at 1.24V to recharge themselves back to 1.26V and light up the LED at full brightness.  The Oscilloscope pictures showed clearly that the net Input Current was negative.  That would yield Negative Input Power.  It was sensible if there were external energy lead-out or brought-in from the environment.  You can always order some "guaranteed OU" boards from Mr. Zhou and do the experiments yourself.  Yelling that someone made errors at a few thousand miles is not very convincing....  Look at the evidence or experimental results.  We already have confirmed results from Hong Kong and China.  Just wait for more from Europe or US.

[TinselKoala]

Lawrence.... how can you read a positive VOLTAGE if the current is NEGATIVE? A positive voltage means that "conventional" current will flow from positive terminal to negative terminal. Call the pointy end of the battery A and the flat end B. A positive voltage reading means that A is at higher potential than B and that current (conventional) will flow from A to B. A NEGATIVE current reading means that the current is flowing in the other direction... which would require B to be MORE POSITIVE than A. And this is NOT what your scope shows. Your scope readings are not indicating what you think and claim that they are.
(ETA: More strictly the negative current in the input side current-viewing resistor would require that the potential at the circuit end of this resistor be lower than the potential at the negative pole of the battery, since the resistor is installed on the negative rail of the circuit. At least, it was the last time I saw a schematic, and that's how it is in my testbed. This is equivalent to making the negative pole of the battery, positive wrt the circuit.)

Your "AA battery charger" can slightly raise an indicated voltage on depleted batteries.... but it cannot improve the total runtime available from those batteries. Plot the _average voltage_ of both batteries (VB1+VB2)/2 versus time, samples every ten minutes, and include an instrumental reading of the light output of the LED. If the LED truly retains full brightness, and the average of the two batteries _does not decrease_ over a reasonable time interval-- say 24 hours -- then PERHAPS this would indicate some enhanced performance. But you have not shown any data from such a test.

Yelling seems to be necessary, since you apparently are deaf to reason.

ETA: I have clearly shown in videos what the simple addition of a couple of inches of wire can do to instrumental readings of a JT circuit, and I showed it using more sophisticated equipment, including both a current-viewing resistor and a non-contact current probe. You have so much stray and random wiring that you cannot rely on your instrumental readings of high-frequency signals to be correct at all.

[ltseung888]

Lawrence.... how can you read a positive VOLTAGE if the current is NEGATIVE? A positive voltage means that "conventional" current will flow from positive terminal to negative terminal.....

@TK,
What we are observing is not conventional.  The Input Current is fluctuating around the zero axis.  There is both positive and negative values as detected by the oscilloscope.  If you believe that the result is from wires etc, wait for results from other testers.  Unfortunately, you refuse to accept the "guaranteed OU" boards and do the test yourself.  If you ever change your mind, the offer of sending you a FREE board stands.

@testers,

Please use a rechargeable AA battery as Input on the Board.  Hook a voltmeter or the oscilloscope to check the change in voltage for a few days.  Report the results.  My results for one night (8 hours) appeared too good to be true!  I now use 2 boards to redo the experiment.

*** testers: You can use the rechargeable AA Battery to power something else first.  Get its voltage to drop down to around 1.26V.  Then use it as Input on the Board.  Make sure that the LED is ON brightly.  See what happens 8 hours later. 

The Almighty always provides unexpected, pleasant surprises to those who try.

[ltseung888]

Understanding Negative Input Current?

I set Ch1 to AC coupling.  This essentially took away the steady DC voltage from the display.  See the resulting oscilloscope screen.  The circuit caused a "ripple" with components across the zero axis.  This ripple is responsible for the "unconventional" voltage or current flow across the current sensing 1 ohm resistor.  Can it be explained by the Back EMF?  More research is needed.

This area of research is extremely important as implies the existence of the "impossible" negative power in TK's terms...

The Lead-out Energy theory suggests that external energy comes in.  It is like an additional voltage source coming in periodically.  Such an additional voltage source can easily provide additional energy to the circuit.  Average Output Power greater than Average Input Power due to this additional energy (power) is NO longer a mystery.

[PiCéd]

In fact ltseung888, the + of the battery become - and the - of the battery become + but does not fall to 0, that's it ?